Defn: A fortress. [Obs.] Howell.

PROPUGNATION
Pro`pug*na"tion, n. Etym: [L. propugnatio.]

Defn: Means of defense; defense. [Obs.] Shak.

PROPUGNER
Pro*pugn"er, n.

Defn: A defender; a vindicator. "Zealous propugners." Gov. of Tongue.

PROPULSATION
Pro`pul*sa"tion, n. Etym: [L. propulsatio. See Propulse.]

Defn: The act of driving away or repelling; a keeping at a distance.
[Obs.] Bp. Hall.

PROPULSE Pro*pulse", v. t. Etym: [L. propulsare, v. intens. from propellere to propel. See Propel.]

Defn: To repel; to drive off or away. [Obs.] Cotgrave.

PROPULSION
Pro*pul"sion, n. Etym: [Cf. F. propulsion. See Propel.]